期刊
OPTICS LETTERS
卷 34, 期 1, 页码 19-21出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.34.000019
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资金
- Deutsche Forschungsgemeinschaft (DFG)
- State of Baden-Wurttemberg through the DFG-Center for Functional Nanostructures (CFN)
- Future and Emerging Technologies (FET)
- European Commissio [213390]
- Bundesministerium fur Bildung und Forschung (BMBF)
- Helmholtz-Hochschul-Nachwuchsgruppe [VH-NG-232]
- DFG Emmy-Noether fellowship [FR 1671/4-3]
- Karlsruhe School of Optics and Photonics (KSOP)
We present the blueprint for a novel negative-index metamaterial. This structure is fabricated via three-dimensional two-photon direct laser writing and silver shadow evaporation. The comparison of measured linear optical spectra with theory shows good agreement and reveals a negative real part of the refractive index at around 3.85 mu m wavelength-despite the fact that the metamaterial structure is bianisotropic owing to the lack of inversion symmetry along its surface normal. (C) 2008 Optical Society of America
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